Re: package body functionality

["DuckE" <nospam_steved94@home.com>]

"Jeffrey Carter" <jrcarter@acm.org> wrote in message
news:3B0FE64F.7D574D2E@acm.org...
> Staffan Dittmer wrote:
> >
> > package body A is
> >  variable: some_type:=call_some_function_outside_A;
> > end A;
> >
> > package body B is
> >  variable: some_type;
> > begin
> >  variable:=call_some_function_outside_B;
> > end B;
> >
> > I know that in B the variable will be assigned
> > every time a program using the package is run,
> > but is this also true for A, or will the variable in
> > this case only be assigned at compile time ?
>
> Non-static initialization expressions, such as function calls, are
> evaluated during elaboration, which happens at run time. Both variables
> will be initialized during elaboration at run time.

Unless the compiler has a form of global optimization that determines
the result of performing the operation at compile time is the same as
evaluating
both at elaboration time (a nice optimization).

SteveD

>
> --
> Jeff Carter
> "You tiny-brained wipers of other people's bottoms!"
> Monty Python & the Holy Grail